و انا بالف اتعلم عن مكبرات الصوت شوية حجات وقعت على الدايرة دى
و هى مكبر صوت 180 وات جبتها من موقع ايطالى
مع العلم انى مش محترف قوى بس بدات اتعلم و نفسي انفذ المشروع ده
محتاجين حد يقولنا هل الدايرة دى فعلا عملية و سهلة التنفيذ زى ما انا متصور ؟
عاوزين نعرف دايرة الباور بتاعة الدايرة دى ايه ؟؟
الدايرة مكبر اشارة بمدخل RCA يعنى من كمبيوتر او كاسيت او اى مصدر صوت
محتاجين نضيف لها مداخل لمايكات علشان تنفع مساجدنا
و هل ممكن تكون عملية للمساجد
ده المكتوب فى الموقع بعد ترجمته للانجليزية
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Circuit dynamic power amplifier circuit with IC Dmos TDA7294 – bridge 180W or stereo 2 x 80 Watts
By
Toni on Apr 22, 2011 with
Comments 6 Viewed 22,665 views times
This circuit described here uses two cis tda 7294 for use in stereo (2 x 80Watts) or bridge mode (1x 180 Watts), to configure this setting just four jumpers. To facilitate mounting the circuit has
power supply attached. The power is kind of simple symmetrical with a bridge rectifier 6A, and two large electrolytic capacitors , 10000μF the 22000μF/50v. This
Power supply will for the two modules. The processor is recommended 22-0-22 to 28-0-28 / 5A, depending on the quality of the transformer is recommended at least 6 amps of current.
The TDA7294 is a monolithic integrated circuit in Multiwatt15 package, intended for use as
audio class AB
amplifier in Hi-Fi field applications (Home Stereo, self powered loudspeakers, Top-
class TV). Thanks to the wide voltage range and to the high out current capability it is able to supply the highest power into both 4Ω and 8Ω loads even in presence of poor supply regulation, with high Supply Voltage Rejection. The built in muting function with turn on delay simplifies the remote operation avoiding switching on-off noises.
Another application suggestion is the BRIDGE configuration, where two TDA7294 are used, In this application, the value of the load must not be lower than 8 Ohm for dissipation and current
capability reasons. A suitable field of application includes HI-FI/TV subwoofers realizations.
In stereo, all jumpers must be open and the speakers (speakers) are plugged into connectors Lout and Rout and
audio input connectors in the Lin and Rin. In the
amplifier in bridge mode all jumpers should be closed and the audio output Lout is (+ the speaker) Rout (- the speaker) and audio input will be Lin, Rin will be shorted to ground via JB2.
The main advantages offered by this solution are:
- High power performances with limited supply voltage level.
- Considerably high output power even with high load values (i.e. 16 Ohm).
With Rl= 8 Ohm, Vs =
25V the maximum output power obtainable is 150 W, while with Rl=16Ohm, Vs =
35V the maximum Pout is 170 W.
و دى بعض صور لمراحل تصنيعها
و دى فيديوهات
http://www.youtube.com/watch?feature...&v=aZvOAw95zFo
http://www.youtube.com/watch?feature...&v=FG5X4yJ5J50
انا حطيت الدايرة بعد ما بصيت على كل دواير الصوت الى فى القرية تقريبا
اتمنى لو حد من احبابنا الى عندهم خبره يفيدنا
ازاى نضيف دايرة مبسطة علشان مداخل المايكات ؟؟ و يكون متناسب مع فولتية الدايرة
انا باكد يا جماعة انا مش خبير و الى يشرح شئ يشرحه على اسا ان فيه ناس على قدها و كذلك كنتم من قبل
جزى الله خيرا كل من اعان على هذا الخير
و لكم الشكر
ه
مكبر صوت 180 وات سهل جدا و رائع باستخدام TDA7294
